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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KW6F callsign genealogy

Currently held by KOZAWA, MATSUNORI

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by KW6F's current licensee, walking backwards.

  1. AJ6YJcancelled· E
    WARKENTIN, MICHAELCAgranted 2022-08-17cancelled 2022-11-04
  2. KN6VLXcancelled· E
    WARKENTIN, MICHAELCAgranted 2022-08-17cancelled 2022-10-11

Successor callsigns

Callsigns held now by people who previously held KW6F.

  1. N6DGactive· E
    Lazarowich, Richard JCAgranted 2020-06-19

All historical holders

Every license row we've seen with the callsign KW6F, oldest first.

  • KOZAWA, MATSUNORI FL
    2008-04-24 → cancelled 2020-04-25
  • Lazarowich, Richard J CA
    2020-05-15 → cancelled 2020-06-19
  • WARKENTIN, MICHAEL CA
    2022-11-04 active
← Back to KW6F License history →